The 25-year-old actress testified in July at a U.S. Congressional hearing on religious persecution in China.

In her testimony, she said she wanted to “speak for those in China that are beaten, burned and electrocuted for holding to their beliefs,” according to the full text of her statement on the Congressional-Executive Commission on China’s website.

“I was interested in human rights way before I even thought of beauty pageants,” Lin, 25, told Reuters on Tuesday.

While other contestants have received their invitation that allows them to apply for a visa to attend the finals, Lin said she has received no letter and believes China is trying to block her from the event.

“I don’t think this is an administrative issue. It is not. I think this is a matter of principle,” said Lin.